* Project Euler problem 191 solution
* Add type hints and reference links
* Address requested changes
- update documentation
- split out helper function but mark it with an underscore
- remove redundant comments or make them more explicit/helpful
* Address requested changes
Project Euler is a series of challenging mathematical/computer programming problems that will require more than just mathematical
insights to solve. Project Euler is ideal for mathematicians who are learning to code.
Here the efficiency of your code is also checked.
I've tried to provide all the best possible solutions.